[ale] Multiple monitors on Wheezy
Damon L. Chesser
damon at damtek.com
Tue Mar 11 17:18:23 EDT 2014
On 03/11/2014 05:02 PM, Edward Holcroft wrote:
Aside from Jim's advice, are you running the tool as root?
> I currently have two 23" monitors on my Wheezy desktop box. Now I've
> added a second video card (identical to the first) so that I can have
> a third and maybe a fourth monitor if needed. I installed the Nvidia
> drivers using these instructions:
>
> https://wiki.debian.org/NvidiaGraphicsDrivers
>
> If I use the Nvidia GUI tool to enable the third monitor, it seems to
> work, and even changes the xorg file, but the settings don't stick and
> the file reverts to dual monitor on a single card.
>
> $ lspci | grep GeForce
> 01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce
> 8400 GS] (rev a2)
> 06:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce
> 8400 GS] (rev a2)
>
> *This first config shows the settings with 2 monitors working
> perfectly on 1 video card:*
>
> # nvidia-settings: X configuration file generated by nvidia-settings
> # nvidia-settings: version 304.88 (pbuilder at cake) Wed Apr 3
> 08:58:25 UTC 2013
>
> Section "ServerLayout"
> Identifier "Layout0"
> Screen 0 "Screen0" 0 0
> InputDevice "Keyboard0" "CoreKeyboard"
> InputDevice "Mouse0" "CorePointer"
> Option "Xinerama" "0"
> EndSection
>
> Section "Files"
> EndSection
>
> Section "InputDevice"
> # generated from default
> Identifier "Mouse0"
> Driver "mouse"
> Option "Protocol" "auto"
> Option "Device" "/dev/psaux"
> Option "Emulate3Buttons" "no"
> Option "ZAxisMapping" "4 5"
> EndSection
>
> Section "InputDevice"
> # generated from default
> Identifier "Keyboard0"
> Driver "kbd"
> EndSection
>
> Section "Monitor"
> # HorizSync source: edid, VertRefresh source: edid
> Identifier "Monitor0"
> VendorName "Unknown"
> ModelName "Acer AL2216W"
> HorizSync 30.0 - 82.0
> VertRefresh 56.0 - 76.0
> Option "DPMS"
> EndSection
>
> Section "Device"
> Identifier "Device0"
> Driver "nvidia"
> VendorName "NVIDIA Corporation"
> BoardName "GeForce 8400GS"
> BusID "PCI:1:0:0"
> EndSection
>
> Section "Screen"
> Identifier "Screen0"
> Device "Device0"
> Monitor "Monitor0"
> DefaultDepth 24
> Option "Stereo" "0"
> Option "nvidiaXineramaInfoOrder" "CRT-0"
> Option "metamodes" "CRT-0: nvidia-auto-select +0+0, CRT-1:
> nvidia-auto-select +1680+0"
> SubSection "Display"
> Depth 24
> EndSubSection
> EndSection
>
> *This second config shows what the file looks like after enabling the
> second card using the Nvidia S server setting tool:*
>
> # nvidia-settings: X configuration file generated by nvidia-settings
> # nvidia-settings: version 304.88 (pbuilder at cake) Wed Apr 3
> 08:58:25 UTC 2013
>
> Section "ServerLayout"
> Identifier "Layout0"
> Screen 0 "Screen0" 0 0
> Screen 1 "Screen1" RightOf "Screen0"
> InputDevice "Keyboard0" "CoreKeyboard"
> InputDevice "Mouse0" "CorePointer"
> Option "Xinerama" "0"
> EndSection
>
> Section "Files"
> EndSection
>
> Section "InputDevice"
> # generated from default
> Identifier "Mouse0"
> Driver "mouse"
> Option "Protocol" "auto"
> Option "Device" "/dev/psaux"
> Option "Emulate3Buttons" "no"
> Option "ZAxisMapping" "4 5"
> EndSection
>
> Section "InputDevice"
> # generated from default
> Identifier "Keyboard0"
> Driver "kbd"
> EndSection
>
> Section "Monitor"
> # HorizSync source: edid, VertRefresh source: edid
> Identifier "Monitor0"
> VendorName "Unknown"
> ModelName "Acer AL2216W"
> HorizSync 30.0 - 82.0
> VertRefresh 56.0 - 76.0
> Option "DPMS"
> EndSection
>
> Section "Monitor"
> # HorizSync source: edid, VertRefresh source: edid
> Identifier "Monitor1"
> VendorName "Unknown"
> ModelName "Acer V233H"
> HorizSync 31.0 - 83.0
> VertRefresh 56.0 - 76.0
> Option "DPMS"
> EndSection
>
> Section "Device"
> Identifier "Device0"
> Driver "nvidia"
> VendorName "NVIDIA Corporation"
> BoardName "GeForce 8400GS"
> BusID "PCI:1:0:0"
> EndSection
>
> Section "Device"
> Identifier "Device1"
> Driver "nvidia"
> VendorName "NVIDIA Corporation"
> BoardName "GeForce 8400GS"
> BusID "PCI:6:0:0"
> EndSection
>
> Section "Screen"
> Identifier "Screen0"
> Device "Device0"
> Monitor "Monitor0"
> DefaultDepth 24
> Option "Stereo" "0"
> Option "nvidiaXineramaInfoOrder" "CRT-0"
> Option "metamodes" "CRT-0: nvidia-auto-select +0+0, CRT-1:
> nvidia-auto-select +1680+0"
> SubSection "Display"
> Depth 24
> EndSubSection
> EndSection
>
> Section "Screen"
> Identifier "Screen1"
> Device "Device1"
> Monitor "Monitor1"
> DefaultDepth 24
> Option "Stereo" "0"
> Option "metamodes" "nvidia-auto-select +0+0"
> SubSection "Display"
> Depth 24
> EndSubSection
> EndSection
>
>
> However, the third monitor never displays anything even though it's
> clearly being detected. I've tried both outputs on the new card. If I
> exit our of the Nvidia tool, the settings are not saved and next time
> I open it I have to detect the monitor again. I've tried with and
> without xinerama.
>
> Any ideas?
>
> cheers
> ed
>
> --
> Edward Holcroft | Madsen Kneppers & Associates Inc.
> 11695 Johns Creek Parkway, Suite 250 | Johns Creek, GA 30097
> O (770) 446-9606 <tel:%28770%29%20446-9606> | M (770) 630-0949
> <tel:%28770%29%20630-0949>
>
> MADSEN, KNEPPERS & ASSOCIATES USA, MKA Canada Inc.
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--
Damon L. Chesser
damon at damtek.com
http://www.linkedin.com/in/dchesser
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